Incandescent gas-lamp.



J. RUBIN.

INGANDESGENT GAS LAMP.

APPLIOATION FILED MAY 18. 1910.

Patented Sept. 13,1910.

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JOSEPH RUBIN, OF NEW YORK, N. Y.

INCANDESCENT GAS-LAMP.

Specification of Letters Patent.

Patented Sept. 13, 1910.

Application filed May 18, 1910. Serial No. 562,046.

To all whom it may concern:

Be it known that I, JOSEPH RUBIN, a subject of the Czar of Russia,residing in the borough of Bronx, New York city, county and State of NewYork, have invented certain new and useful Improvements in In candescentGas-Lamps, of which the following is such a full, clear, and exactdescription as will enable any one skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, forming part of this specification.

My invention relates to gas lamps in which incandescent mantles are usedand the invention has more particular reference to lamps of this classin which the upright Argand burner is employed, though some of thefeatures are applicable to the inverted mantle type of lamp.

I have illustrated a type of my invention in the accompanying drawings,wherein; Figure 1 is a central vertical section of my improved gas lamp.Fig. 2 is a horizontal sectional view taken on a plane indicated by line22, Fig. 1, and. looking up wardly. Fig. 3 is a horizontal sectionalView of the lamp, the plane. of the section being indicated by line 33,Fig. 1, and looking downwardly.

Referring to the drawings in which like numbers of reference designatelike parts throughout, 1 is the main gas pipe having a fitting 2 at itslower end and from which extend in opposite directions, the dependingpipes 3, and 4-, which are suitably spaced from each other and extendfor a considerable distance downwardly in a parallel di rection, thencebend outwardly at 5 and 6, respectively, and curve inwardly again at 7and 8, and near their lower ends bend suddenly outwardly at 9 and 10,respectively. The pipes continue on for a short distance in an outwarddirection at 11 and 12 and are then bent suddenly inwardly at 14 and 15in a horizontal direction where they both unite with a suitable fitting16 which is provided with an ordinary valve 17 having a cross arm 18provided with the usual pull-chains 19 and 20. The fitting 16 carries anordinary Argand burner 21 on which is mounted a chimney-holder 22 forsupporting the vertical glass chimney 23. Upon the burner and within thechimney is mounted an incandescent mantle 24 having the usual supportingdevice 25.

At a suitable point the mainpipe 1 is tapped by the screw valve casing26 from which depends a detachable pilot light pipe 27 having its burner28 positioned just above the upper end of the chimney 23, for the usualpurpose of lighting the gas from the burner 21 when the valve or key 17is turned into open position. This valve casing 26 is provided with ascrew valve 29 which may be turned by hand to regulate the flow of gasto the pilot light pipe 27 and to cut it off completely when desired.

The depending pipes 3 and 4 are suitably spaced above the chimney so asnot to subj ect them to the direct and intense heat from the chimney andthey are curved around the chimney in order to space them therefrom andalso to provide the supporting shoulders 5 and (3, respectively, for theinclosing casing, which will be described later on. The inward bends 9and 10 in the pipes make the same conform somewhat to the generalcontour of the chimney and the burner, and the corresponding shape ofthese two pipes cause the same to present a symmetrical and pleasingappearance to the lamp. Either one or the other of the pipes 3 and a maybe used for supplying the gas to the burner or both of them may be soused and these pipes may be increased or reduced in number, if desired.

The upper part of. the depending pipes 3 and 4 are inclosed by a tubularcasing within which such part of the pipes are completely housed. Thistubular casing comprises a central contracted part 30 and an upperenlarged part 31 which is secured thereto by suitable screws or rivets32. This enlarged part 31 extends upyardly and outwardly and thence iscontracted slightly inwardly at its upper end where it provides anopening for the escape of the gases of combustion coming from theburner. The inclosing casing also comprises a lower part 34 which has adownward and outward flare and is secured to the central part 30 bymeans of screws 35. At its lower end the casing is provided with acircular shade-holder 36 having set-screws 37 for securing in place ashade 38.

Within the lower end of the tubular cas ing is mounted an annular shapedreflector 39, the underside of which is convex and through the centralopening 40 of which projects the upper end of the chimney 23. Thisconvex surface of the reflector is at a point somewhat below theshade-holder 36 and in addition to serving as a reflector, this annularpart serves to close or contract the flaring end of the casing. Thecentral opening 40 of the annular part 39 is provided with notches orslots 41 and 42 for the recept'ion of the pipes 3 and 4, respectively.The shoulders or outward bends 5 and 6 of the respective pipes extendthrough the notches 41 and 42 and the closed end of each notch restsdirectly against the outer side of the pipe passing through it. Thisserves to support the inclosing casing in its vertical position. Theupper end of the inclosing casing is provided with a bracket 43 which isattached to the inside of the upper end of the casing and is mounted onthe main pipe 1 by means of a central perforation 44 in the bracket.This bracket serves to keep the casing in its vertical position at itsupper end and the bracket is held from rising on the main pipe 1 bymeans of a sleeve 45 which surrounds the pipe 1 and is interposedbetween the bracket and the cross piece 46 which is secured to theinterior of the deflecting plate 47 which is supported on pipe 1 and ata suitable distance above the upper end of the casing. As the closedends of the notches 41 and 42, respectively, engage the shoulders 5 and6 on the depending pipe, and the bracket 43 at the upper end of thecasing is held against vertical movement, this serves to secure thecasing in firm position upon the pipes.

From the above description, it will be seen that the casing in additionto serving as an intensifier or draft creator, also serves as a housingfor the depending pipes and the pilot light pipe, which housing isornamental, and furthermore the inclosing casing provides a support forthe shade-holder at its lower end, likewise a support for the reflectorat its lower end.

The deflect-ing plate 47 has the usual central opening into which takesa set screw 48 for engaging the gas pipe 1 and securing the plate infixed position. When so fixed this plate through the medium of the crossbar 46 and the sleeve 45 surrounding the gas pipe and the bracket 43 ofthe casing serves to hold the latter down against the shoulders 5 and 6on the depending pipes and thus keep the casing in fixed position.

Having thus described my invention what I claim and desire to secure byLetters Patent is:

1. In a gas lamp, the combination of depending pipes and a gas burnermounted on the lower part thereof, a chimney for said burner, a valvecont-rolling the supply of gas to the burner, a casing inclosing theupper part of said pipes and housing the same, an annular supportingplate secured concentrically to the lower end of said casing andengaging said pipes, said plate serveeaasa ing to support said casing onsaid pipes and to contract the opening in the lower end of said casing.

2. In a gas lamp, the combination of depending pipes provided withoutwardly projecting shoulders or bends, a gas burner mounted on thelower part of said pipes, a

'chimney for said burner, a valve controlling the supply of gas to theburner, a casing inclosing said pipes and housing the same, an annularsupporting plate secured to the lower end of said casing and having theedge of its central opening provided with notches for receiving saidpipes and supporting said plate upon the shoulders or bends of saidpipes.

In a. gas lamp, the combination of de pending pipes and a. gas burnermounted on the lower part thereof, a chimney for said burner, a valvecontrolling the supply of gas to the burner, a casing inclosing theupper part of said pipes and housing the same, said casing having acontracted part acting as an intensifier or draft pipe, an annularsupporting plate secured concentrically to the lower end of said casingand engaging said pipes, said plate serving to support said casing onsaid pipes and to contract the opening in the lower end of said casing,the upper end of said chimney com municating with the central opening insaid plate.

Ina gas lamp, the combination of depending pipes and a gas burnermounted on the lower part thereof, a chimney for said burner, a valvecontrolling the supply of gas to the burner, a casing inclosing theupper part of said pipes and housing the same, a shade holder mountedupon the lower end of said casing, an annular sup porting plate securedconcentrically to the lower end of said casing and engaging said pipes,said plate extending below said shade holder serving to support saidcasing on said pipes and to contract the openingin the lower end of saidcasing and also serving as a reflector.

5. In a gas lamp, the combination of de pending pipes and a gas burnermounted on the lower part thereof, a chimney for said burner, a valvecontrolling the supply of gas to the burner, a casing inclosing theupper part of said pipes and housing the same, an annular supportingplate secured concentrically to the lower end of said casing andengaging said pipes, said plate serving to support said casing on saidpipes and to contract the opening in the lower end of said casing, abracket mounted upon the upper part of said pipes and attached to theupper end of said casing to -prevent the same from rising.

6. In a gas lamp, the combination of depending pipes and a gas burnermounted on the lower part thereof, a chimney for said burner, a Valvecontrolling the supply of gas opening in the lower flared part of the tothe burner, a casing inclosing the upper casing.

part of said pipes and housing the same, In testimony whereof, I havehereunto set said casing being formed with a contracted my hand in thepresence of the two subscrib- 5 central part and flaring upper and lowering witnesses.

ends an annular supportin plate secured concentrically to the lower 5ndof said cas- JOSEPH RUBIN ing within the flared part thereof for en-Witnesses:

gaging said pipes and serving to support ROBERT F. HENRY,

10 the casing on said pipes and to contract the WVILLIS FOWLER.

